The first pillar of a sustainable economy and society is nature conservation:

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recognizes the need to conserve nature and the natural environment as a base for life on earth. Men's life is based on the resources supplied by the global eco-support system for life on the planet (e.g. biodiversity, the atmosphere and the oceans), and the regional carrying capacity of nature with regard to populations and their lifestyle (e.g. the water cycle, land-use patterns, waste assimilation).